Mangle-gear.



6., H. GOLDSMITH.

MANGLE GEAR. APPLICATION FILE!) JULY I5. 19.

1,239,386. PatentedSept. 4,1911.

2 SHEETS-SHEET I.

G. H. GOLDSMITH.

MANGLE GEAR.

APPLICATION HLED JULY 15.1914.

1,239,386. PatentedSept. 4,1917.

' 2 SHEETS-SHEET 2.

Wrrflssas: l lv l-r (1my6M- I Gil-w. P-"K O GEORGE E. GOLDSMITH, or 011) ORCHARD,

MAINE, Ass-fslvon To sAco-LoWELL SHOPS, OF BOSTON, MASSACHUSETTS, A CORPORATION MASSAOHUSETTS.

MANGLE-GE'AB;

. Specification of Letters Patent.

Patented sept. 4., 1917.

Application filed July 15, 1914. Serial in. 851,197.

To all whom it may concern:

Be it known that I, GEORGE H. GOLD- sMiTii, of Old Orchard, in the county of York and State of Maine, a citizen of the United States, have invented a new and use ful Improvement in Mangle-Ge'ars, of which the following is a full, clear, and exact description reference being had to th'e'acconr pa'nying d 'awingsforming a part of this specification, in explaining its nature.

The invention relates to an improvement in mangle gears for spo'olers and consists in a construction by which considerable speed variation may be obtained by the improved mangle gear for varying the wind upon a spool as occasion may require.

According to the usual operation of a spooler the yarn is wound from the bottom to the top of the spool when it reverses and is wound from the top to the bottom," reversing again at this point, and so on, each layer of yarn covering the preceding one. The yarn is also wound upon the spool in such manner that the full spool of yarn will have a uniform diameter throughout or be convex; in other words, be larger at the center than at either of its ends, the degree of convexity varying with the particular effect desired to be obtained.

The distribution of the yarn upon the spool is initially effected by means of the mangle-gear operated by a pinion gear to have i a reverse movement and thereby, through other connections by which its power is transmitted, to lay the yarn upon the spool in layers running from the bottom to the top of the spool and return as aforesaid. If the teeth of the mangle gear be concentric with its axis then its speed is uniform at all times, the speed of the pinion gear being constant, thereby producing a full spool of uniform diameter throughoutf If, however, a full spool is desired in which there is a gradual increase in the lay of the yarn as approach is made to the center of the spool from either end, then a mangle gear is employed in which the teeth are eccentric with relation to the axis of the gear. Such eccentricity tends to produce a variance in the operative speed of the mangle gear and produces a wind upon the spool, the degree of convexity of the wind varying with the degree of eccentricity of the teeth of the mangle gear with relation to its axis.

vbv the usual mechanism not shown.

It is oftentimes necessary to vary the cha actor of the wind and in such case the practice has been to change the mangle gear by removing it from the machine and substituting in it's place one having a different form of eccentricity.

It is the object of the present invention to provide a mangle gear capable of producing a wind of normal diameter or one presenting any degree of convexity within the usual limits desired to be obtained. A

j My invention can-best be seen and under stood by reference to the drawings in which the improved mangle gear is shown and such associated parts of a spooling machine as are necessary to a proper understanding of the gear and the mode of using it.

Figure 1 is a side elevation of the base of a mangle gear provided with the improvement comprising my invention. j

- Fig. 2 is an elevation of the rear side thereof, and Y Fig. '3 is an elevation of the side edge of the gear and associated parts.

1 represents the mangle gear. This gear is mounted to turn upon a stud 2 the center of which'forms the axis of the gear. The stud extends through an opening 8 in the gear and is fixed in any suitable manner to the frame of the machine, not shown. 1 is a pinion gear cooperating with the mangle gear for reversely turning it 'in the usual manner. The pinion gear at is fixed to a shaft 5 held in place and otherwise operated. The mangle gear 1 is mounted upon the stud 2 in such manner that the teeth 6 of the gear may lie in a position substantially concentric with the stud and axis of the gear or occupy a varying position of eccentricity with relation thereto. A This eflect is obtained as follows:

As may be noted by reference to Fig. 1 the stud 2 extends beyond the front side 7 of the gear. Mounted upon this extending portion of the stud is a sleeve 8 which is fixed to the stud by means of a binding screw 9. The sleeve 8 is providedwith laterally extending wings or flanges 1O oppositely arranged and contained within a guide 11 fixed to the side 7 of the mangle gear. The flanges have in them slots 12 and through these slots pass bolts 13 which fasten the sleeve to the guide and body of the gear. The arrangement of the slots 12 and also the arrangement of the guide are such as topermit of the mangle gear being moved relatively to the sleeve and stud within the limits of the slots 12 upon loosening the bolts 13. The mangle gear may then be set in the position to which it has been moved upon again tightening the bolts. The

size and disposition of the slots 12 is further such that the mangle gear may be set in a position where the teeth 6 thereof will lie in a position substantially concentric with the stud and axis of the gear, or be set in a position of varying eccentricity with rela tion thereto, the variance of eccentricity being obtained by moving the gear in a general direction of a line passing through the center of the stud and a point midway between the outer teeth 15 and 16 of the gear.

The mangle gear operates a gear 17 which is mounted upon the sleeve and held in place by a clamp nut 18. The gear 17 connects with the usual geared connections for operating the traverse rail as the mangle gear is reversely turned. The general operation of the improved mangle gear is as follows 2- According to the usual operation of the mangle gear it is so set that the traverse rail will just reach the top and bottom of its traverse when the pinion gear is reversing around the outer teeth 15 and 16, respectively, of the mangle gear. As the traverse rail approaches the center of its traverse the pinion gear will then be engaging those teeth of the mangle at or adjacent to the point 19 of its teeth.

Assuming now that the pinion gear be moving at a constant speed and the mangle gear is so set position substantially concentric with the stud 2 and axis of the gear: In such case the traverse rail would have a substantially constant upward and downward traverse at every part thereof, thus producing a spool of substantially normal diameter. Assuming now that the centrically with relation to the center of the stud 2 and axis of the mangle gear, there upon the mangle gear will be operated more slowly as the pinion gear approaches and Copies of this patent may be obtained for that its teeth will occupy a mangle gear is moved ecfive cents each,

leaves the point 19 of its teeth than when aperse than at the ends thereof, thereby imparting a convexity to the wind upon the spool or making the same barrel shaped. It is evident that such a degree of convexity imparted to the wind will depend upon the amount that the man le ear is moved eccentrically with relation to the center of the stud and axis of the gear, the arrangement above described permitting of such eccentricity as will admit of practically any convexity being given the wind within the usual limits desired to be obtained.

rlavmg thus fully descrlbed my invention, 1 claim and desire to secure by Letters Patent of the United States 1. A mangle gear, a supporting stud and means for mounting said gear upon said stud whereby said gear may be moved and the teeth of said gear occupy diil'erent positions of eccentricity with relation to said stud along a line passing through the center of the stud and a point substantially midway between the outer teeth of said gear.

7 2. A mangle gear and a pinion gear for operating the same, a supporting stud or shaft upon which themangle gear is mounted to turn, said stud or shaft forming the axis of the mangle gear, means for mounting the mangle gear upon said stud or shat't whereby the teeth of the mangle gear may occupy a position either substantially concentric with said shaft and axis of the mangle gear, or different adjusted positions of eccentricity with relation thereto along a line passing through the center of the stud and a point substantially midway between the outer teeth of said. gear, and means for fixing the mangle gear in any of its adjusted positions.

GEORGE H. GOLDSMITH.

\Vitnesses Gnonon L. EMERY, ANNIE F. DUNN.

by addressing the Commissioner of Patents,

Washington, D. G. 

